Electrical-spark-timer device.



APPLIGATIOH FILED MAYZB, 1906.

. (hui one ive-.ning

0nd 0i which hunks intu Imc; und 0i h-w Y No. 858,956. Specification Application tiled 15H-U' 28: 196g' B0 it krmwn that li, HUBERT( mann. n! No non, in thil cnunty of Knox und Hintv mi i? thernnf, reiter( i( x.- huing inni In th-lx :i y 'm 'uw .V und has zt stud V thumb ings, which tn'i'n anni. Qi this .fnliiriicanimn l wl und ninnid inta it; which piojvcts through they hot- Ths inYQXiiOzA ji init m' ,lmnv min-1' Snitnblo dvico is the Humbul' tino und duration e mitm' vini wi sind V whcieto it cnrmim' snitah insuintiun as :it niirtving' time ohtftnvd, is tiwn pzssmi '70 l g El? und is thomnghiy insulated ring K and th@ hinriing ying Z by n, hl, El, 7 and thv interposed Pw gnssmi nnwn and fastened firmly, hy

rkins o *tout h inn o? in@ One appli. hown in thc 1000m pmiying dra uiting th@ 'lines U the, oidimtiy zmtoniohii spark (n dis.

di?k e to protect hy Letters teni.

My inn'nuveincnts the ontcomc tempt@ to overcome the 'many miccia this typo, as om i'nvtcd and tis The huiiowing is a descip'inn it. may he mi pwd to a fonzt: de, :nit vicini u n finggne.,

Figure t is il pian www ni tim (iwi removed, indivi-.ti inaily. F' 2 tizvtnsviers f l, ais() infncating the eier, A Y i icallv, l nini thai in to fun fa t. m" in mmc other sfttis- 7.' .,ivh xviii hlnvh thil icm' :tltmnv-,te iitiiwiy insninttd. To euch oi' the @vwd n. sind 'YA which iS tin' mind in pins", "mihltr-d [mln miss M 'by i This ontciunds of thv S0 hh) i.

inni' him-i iw nmticvd thu; thv tmp inner @dgn or' ring 'K wtimn nnm udg@ of ring L im: hovoimi Off, thns 85 ein'pvri ggrnow which the odg@ m" miler 01 is shmvniund 't 1, n i 'mihziwingfnrinvh shin) umd sim, som@ other positive method (nut shwwni vi a rati() with th(j nii shuit 0i thv Hugin( Th() top part (if Hhnit hum-d down si than thervst, tu iwcoivfx u hrm-lint 0n hy invans ni nnt i) und inutw if x nmnt ni n, pin il with z L '2 ,i 'gi y l Munn as Shown, ih'm'kft (I if; piovifhwi mi inw un? pair mi (uns Hr hws iwtwwn n lait-h ivy ait-i) F on pin l. Unie mui n" yoke m* fork in whif-h jomxnh pin i, said ioihl li has n. dmihh i ha?, h 'v' Revolving; shaft .1X

hy thc: mig:

m1 him/limi him-r1, To uni-h mi 95 L parigi..

:.rmmct :3fmsmnu other 5mm-Q (u 1min @i Whivh is connected uiting' thwiw to the connection V :Lt w. l0() hv Shin tu ni @tutti Swing hasy thtl vi'lnfrft nl' im sing wil nwny h'mn tht; univr if simit A und in rnnndinv imitan-i rings li, Thi"y pxwlsni'f i.- inni' vii l V successively passed can' be connected therewith. By reason oi the V-shaped or angular contact produced by causing the wedge shaped roller to run or revolve in a corresponding wedge shaped groove, I obtain all the advantages of the ilat roller, namely, good wearing qualities, freedom from uneven and excessive side strains, as Well as a large amount of contact surface. By means of the wedging action of the roller, I climinate the tendency ol' the roller to jump, in case either of the rings or the roller itself should become roughe'ned.

As the angle of the beveled laces is such that there is at all times a certain amount of slippage at the points of contact, the device has all the advantages o tht wipe contact system, namely a tendency to continually keep the contact surfaces clean whereby the best results are produced. The pressureobtained at the points of contactwill be `greatly in excess of the pressure applied to the contactI roller by means of the spring provided for that purpose, hence I obtain a irmer, stronger, thrust; or pressure directly at the points of contact with less strain, and consequently, less wear on the balance of the device than it is Otherwise possible to obtain.

The essential features ot my device are-(l) an angular contact between the roller and V-shaped groove or furrow, the roller having a continuous rolling 4movement; vand (2) an angular contact between the roller and V-shaped groove or channel in combination with the ground connection, allowing the current to pass from a contact point .or segment through the roller" and thence into ground ring and from there into the `ground wire, avoiding much loss of current from passing the same through numerous greasy joints, bearings, etc.

With my idea of a direct circulation and'ground connection the electric current is passed directly from the wire to the insulated contact point, then onto the roller or other contact. point, and trom thereon. to the ground ring, block, or other device, as the case maybe,

'and thence on to the ground wire attached thereto.

This makes it possible to have everyi joint clean and with the exception of the points of contact, soldered, if so desired.

By means of this system it ispossible to attain the maximum results with a minimum amount oi current (electric), while in a case where batteries arc used, it is feasible to use the electric current alter a. much lower voltage is reached, than would be possible under any other circumstamfcs. f

and havingA beveled edf-rcs: forming a guide ,Q'roove for the f roller. the beveled edge ot` said roller makingr a continuons rolling: and wipingT contact with the beveled edges ot' said rings.

2. In combination. a continuous contact ring' having' a beveled edge. a series of contact segments adjacent but in snlated trom said ring and each other. said rim,y and ments having beveled edges formingr a groove, a traveling beveled edge contact roller adapted to travel in said groove and make a rolling' and wipinrr contact with the ring and segments, and means for moving' said roller.

3. In an electrical circuit makerand breaker, the combination ot' a rotating contact wheel bavingbevcled edges, a pair of concentrically arranged contact rings surrounding the Orbit of said roller, and adapted to be contacted thereby, the beveled edge ot said roller making' contact. with the beveled edges of said rings, one o1" said ring. being: divided into insulated sections: a direct: elccl'rical circuit connection with one o1' said rines, and circuit connections with sections ot the other ring', substantially. as described.

4. In combination, a continuous contact ring,r having a beveled inner edge. a series of contact'. segments concentric with and insulated from said ring.,r and each other, and having,r beveled inner edges, an orbitally movin',Y beveled edg'e roller adapted to make a rolling and wiping' contact' \\vith the beveled edges of the ring.,y and segments, and means for moving.: said roller in an orbital circuit: and [or 'maintaining Contact between it and the-ring.: and segments, substantially as described.

5. In an electrical spark timer device, the combination of a rotatable shaft,a spring` pressed lever thereon, a bevel edged roller journaled on said lever, a pair of` contact rings surrounding; the orbit. o1 the roller and having,r beveled edges forming a beveled groove for the guidance of and contact wim the roller, one of said rings beim,r continuous, the other divided into insulated sections, a source of electrical energy, a connection between one terminal of. said source and the continuons ring, and between the other terminal of said source and the several insulated contact: sections, substantially as described.

In combination, a continuous contact ringY havin;r a beveled edge. a series of contact segments adjacent to but insulated from said ring: and from each other, said sees ments having beveled edges adjacent the beveled edge of the ring, the beveled portions of the rinf.,Y and segments formingv a groove, an orbitally moving,y contact device baving.: a beveled edge adapted to travel in said groove and contact with the ring' and segments, and means' for moving;- said contact device.

ln testimony that I claim the foregoingr as my own. I allix my signature in presence ot" two witnesses. i

ROBERT tliAllhl. ln presence oi`- J. A. 'lir/roN, Il. W. .InxNiNos 1 

